DESCRIPTIVE GEOLOGY : SLATE ZONE. 129 



to be established that there is a real passage and not an apparent 

 one only between the two. Down-stream from this locality nothing 

 but slates persist, and up-stream nothing but schists. On the left 

 bank of the river, therefore, there is no evidence for a continuation of 

 the boundary fault between the Slate zone and the Crystalline and 

 metamorphic zone which we have hitherto seen to be persistent. 



The bed of the Koonhar at this locality is in a wide open valley 

 inclining to the U shape rather than to the steep V shape which we 

 shall see it possesses further down its course. That this is an indica- 

 tion of the work done by glaciers in post-Tertiary times seems to be 

 likely from the evidence I shall presently notice on the high hill-spurs. 

 The present river-bed is filled with recent gravels in terraces rising 

 to 300 ft. above the river. They present no peculiarities different 

 from similar deposits in the Dore and other drainage lines in Hazara. 

 The portion of the ridge, south of the pass going between Gurhee- 

 _ . , Hubeebooluh and Muzuffurabad, and which lies 



Section along the 



ridg» south of Laichi in Hazara, as also the continuation of the same 



Khun and the vicinity. , , , . . 



ridge down to the point where the Jhelum and 

 Koonhar join one another, is composed of slates or schistose slates. 



Along the line of the road from Gurhee-Hubeebooluh up to the 

 pass the slates are faintly schistose only. In the lower parts of the 

 hill slopes the strike is north-north-east to south-south-west, but 

 higher up it becomes north and south. 



Northwards from the pass up towards Srikote and Laichi Khun 

 and quite close to the pass, we come first upon some of the confused 

 heaps of rocks of several formations, which, I am of opinion, are of 

 glacial origin. Along with them there is a large amount of powdered- 

 up purple and sandy material together with Nummulitic limestone, 

 which mark the north-west end of a strip of the Murree series, 

 which we may see outcropping in a south-east direction towards 

 Domel in Kashmir. Round about Tangar these beds are seen to 

 better perfection. Although the section is disfigured to a great 

 extent by debris, and old morainic material, we can nevertheless dis- 

 tinguish a good band of Nummulitic limestone striking north-west to 

 K ( 129 ) 



